Reasearch suggest that a child's "temperamental individuality" is well established around

Two to three months of age

Jade is a graduate student who is studying the way in which selective attention develops during the preadolescent years. She selects a group of 10 year olds, and she assesses their selective attention every six months over a two year period. In this example, Jade is using

A longitudinal research design

The third stage of prental development, which lasts from two months through birth, is referred to as the

Fetal stage

The age of viability, referring to the age at which the fetus ___, is reached ____.

Can survive if born prematurely; between 22 and 26 weeks

Physical growth during infancy tends to be

Rapid and episodic

Thomas and Chess refer to a child who tends to be glum, erratic in sleep and eating, and resistant to change as

A difficult child

How do children develop special attachments to their mothers according to a behavioral theory?

The mother becomes a conditoned reinforcer because she is associated with the reinforcing act of being fed.

The sequence of age related changes that occur as a person progress from conception to death is known as

Development

Charlie Brown of the "Peanuts" cartoon strip is always trying to kick the football; however he never seems to succeed. According to Erikson, Charlie will most likely develop the basic characteristic of

Inferiority

According to Belsky, if the local environement is unsafe and resources are depleted, then individuals are more likely to form ____ attachments as children, and as adults they will be more likely to purse a reproductive strategy that fosters ____ in mating relationships.

Insecure; quantity

A quiet infant who doesn't seem to smile a lot, who also seldo, cries seems to be cautious and wary of changes in their surroundings, but eventually adapts to the change would be considered to have which of the temperament categories outlined by Thomas and Chess?

A slow to warm up temperament

The cephalocaudal trend in physical development suggest that infants will be able to control their

Shoulders and arms before they can control their hips and legs

The proximodistal trend in physical development suggest that infants will be able to control their

Shoulders and arms before they can control their hands and fingers

When groups of subjects of differing ages are compared at a single point in time, the study is called a